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Data driver and a display apparatus including the same

a technology of a display device and a data driver, which is applied in the direction of electric digital data processing, instruments, computing, etc., can solve the problem of lengthening the time taken for the output of the digital-analog converter to reach a final, and achieve the effect of enhancing the digital-analog conversion speed of the digital-analog converter and suppressing the generated fluctuations

Active Publication Date: 2015-11-26
DONGBU HITEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a way to improve the performance of a data driver in a display apparatus. It does this by reducing fluctuations in the voltage levels of a resistor string in the digital-analog converter, which can lower the speed of the conversion process. This results in a more stable and faster conversion speed. Overall, the patent provides a solution for improving the quality and performance of display apparatuses.

Problems solved by technology

In case such a through current is generated, fluctuation might be caused in a waveform of the distributed voltage provided by the resistor string, and such fluctuation could lengthen the time taken for the output of the digital-analog converter to reach a final voltage.

Method used

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  • Data driver and a display apparatus including the same
  • Data driver and a display apparatus including the same
  • Data driver and a display apparatus including the same

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Embodiment Construction

[0044]Exemplary embodiments of the disclosed subject matter are described more fully hereinafter with reference to the accompanying drawings. The disclosed subject matter may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, the exemplary embodiments are provided so that this disclosure is thorough and complete, and will convey the scope of the disclosed subject matter to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals in the drawings denote like elements. It will be understood that when an element or layer is referred to as being “on”, “connected to”, or “coupled to” another element or layer, it can be directly on, connected, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on”, “directly c...

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PUM

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Abstract

A data driver includes a data storage unit configured to store a data signal therein, a level shifting block configured to shift a level of the data signal and output a level shifted data signal based on the result of the level shifting, a waveform conversion block configured to convert a waveform of the level shifted data signal and generate a conversion data signal (e.g., based on the waveform conversion), and a digital-analog conversion unit configured to output an analog signal based on the conversion data signal, wherein the conversion data signal has a rising time and a descending time that are different from each other.

Description

[0001]This application claims priority from and the benefit of Korean Patent Application No. 10-2014-0060848, filed on May 21, 2014, which is hereby incorporated by reference for all purposes as if fully set forth herein.BACKGROUND OF THE DISCLOSURE[0002]1. Field of the Disclosure[0003]Exemplary embodiments of the disclosure relate to a data driver and a display apparatus including the same.[0004]2. Discussion of the Background[0005]An R-string type converter is broadly used as a digital-analog converter in a data driver for driving data lines of a display panel.[0006]FIG. 11 is a diagram illustrating a conventional R-string type digital-analog converter.[0007]Referring to FIG. 11, the digital-analog converter may turn switches (SW1 through SW6) on or off based on digital data (e.g., D1 through D4), and output one of a plurality of voltages distributed by resistor string 901 having resistors (R1 through R4) connected in series by switching of the switches (SW1 through SW6) as an ana...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/20G09G2310/06G09G2300/08G09G3/3685G09G2310/027G09G2310/0289G09G2310/0291G09G2330/028
Inventor RYU, CHOONG SIK
Owner DONGBU HITEK CO LTD